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Bug #16859

closed

rudder-agent check sleep and process pile-up

Added by Marek Haluška over 4 years ago. Updated about 3 years ago.

Status:
Released
Priority:
N/A
Assignee:
Alexis Mousset
Category:
Agent
Target version:
7.0.0~beta1
Pull Request:
https://github.com/Normation/rudder-t...
Severity:
Major - prevents use of part of Rudder | no simple workaround
UX impact:
User visibility:
Operational - other Techniques | Rudder settings | Plugins
Effort required:
Priority:
43
Name check:
To do
Fix check:
To do
Regression:

Description

Hello,

what is purpose of sleep in /opt/rudder/share/commands/agent-check when it's still running every 5 minutes?

My situation:
  • run agent every 1h
  • first run time 0
  • maximum delay 15m

Rudder server OS: CentOS 8
Rudder server version: 6.0.4
Rudder client OS: CentOS 8, Debian 10
Rudder client version: 6.0.3 and 6.0.4

This is resulting to this behavior, so agent is is still started every 5 mins and server spammed with rudder processes:

root     30127    77  0 06:50 ?        00:00:00 /usr/sbin/CROND -n
root     30128 30127  0 06:50 ?        00:00:00 /bin/sh -c /opt/rudder/bin/rudder agent check -q >> /var/log/rudder/agent-check/check.log 2>&1
root     30129 30128  0 06:50 ?        00:00:00 /bin/sh /opt/rudder/share/commands/agent-check -q
root     30174 30129  0 06:50 ?        00:00:00 sleep 1663
root     30249    77  0 06:55 ?        00:00:00 /usr/sbin/CROND -n
root     30250 30249  0 06:55 ?        00:00:00 /bin/sh -c /opt/rudder/bin/rudder agent check -q >> /var/log/rudder/agent-check/check.log 2>&1
root     30251 30250  0 06:55 ?        00:00:00 /bin/sh /opt/rudder/share/commands/agent-check -q
root     30296 30251  0 06:55 ?        00:00:00 sleep 1663
root     30367    77  0 07:00 ?        00:00:00 /usr/sbin/CROND -n
root     30368 30367  0 07:00 ?        00:00:00 /bin/sh -c /opt/rudder/bin/rudder agent check -q >> /var/log/rudder/agent-check/check.log 2>&1
root     30369 30368  0 07:00 ?        00:00:00 /bin/sh /opt/rudder/share/commands/agent-check -q
root     30414 30369  0 07:00 ?        00:00:00 sleep 1663
root     30950    77  0 07:05 ?        00:00:00 /usr/sbin/CROND -n
root     30951 30950  0 07:05 ?        00:00:00 /bin/sh -c /opt/rudder/bin/rudder agent check -q >> /var/log/rudder/agent-check/check.log 2>&1
root     30953 30951  0 07:05 ?        00:00:00 /bin/sh /opt/rudder/share/commands/agent-check -q
root     31003 30953  0 07:05 ?        00:00:00 sleep 1663
root     31577    77  0 07:10 ?        00:00:00 /usr/sbin/CROND -n
root     31578 31577  0 07:10 ?        00:00:00 /bin/sh -c /opt/rudder/bin/rudder agent check -q >> /var/log/rudder/agent-check/check.log 2>&1
root     31579 31578  0 07:10 ?        00:00:00 /bin/sh /opt/rudder/share/commands/agent-check -q
root     31624 31579  0 07:10 ?        00:00:00 sleep 1663
root     31923    77  0 07:15 ?        00:00:00 /usr/sbin/CROND -n
root     31924 31923  0 07:15 ?        00:00:00 /bin/sh -c /opt/rudder/bin/rudder agent check -q >> /var/log/rudder/agent-check/check.log 2>&1
root     31925 31924  0 07:15 ?        00:00:00 /bin/sh /opt/rudder/share/commands/agent-check -q

Thanks

Subtasks 2 (0 open — 2 closed)

Bug #18040: rudder-agent check sleep and process pile-up in 6.0ReleasedAlexis MoussetActions
Bug #18163: rudder-techniques makefile does not build, and prevent building sourcesReleasedBenoît PECCATTEActions
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 #1

Updated by Nicolas CHARLES over 4 years ago

Hi

When called from the cron, this script should sleep for a random time to avoid hammering the host when there are plenty of VMs.
However, they should not pile up - we should not run it when it's already sleeping/running.

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 #2

Updated by Marek Haluška over 4 years ago

Still same issue in 6.0.5, output from Debian 10.

root     10876   198  0 09:20 ?        00:00:00 /usr/sbin/CRON -f
root     10877 10876  0 09:20 ?        00:00:00 /bin/sh -c /opt/rudder/bin/rudder agent check -q >> /var/log/rudder/agent-check/check.log 2>&1
root     10878 10877  0 09:20 ?        00:00:00 /bin/sh /opt/rudder/share/commands/agent-check -q
root     10926 10878  0 09:20 ?        00:00:00 sleep 1397
root     12158   198  0 09:30 ?        00:00:00 /usr/sbin/CRON -f
root     12159 12158  0 09:30 ?        00:00:00 /bin/sh -c /opt/rudder/bin/rudder agent check -q >> /var/log/rudder/agent-check/check.log 2>&1
root     12160 12159  0 09:30 ?        00:00:00 /bin/sh /opt/rudder/share/commands/agent-check -q
root     12208 12160  0 09:30 ?        00:00:00 sleep 1258
root     13624   198  0 09:40 ?        00:00:00 /usr/sbin/CRON -f
root     13625 13624  0 09:40 ?        00:00:00 /bin/sh -c /opt/rudder/bin/rudder agent check -q >> /var/log/rudder/agent-check/check.log 2>&1
root     13626 13625  0 09:40 ?        00:00:00 /bin/sh /opt/rudder/share/commands/agent-check -q
root     13674 13626  0 09:40 ?        00:00:00 sleep 1119

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 #3

Updated by Bernd Wolf over 4 years ago

The same problem (Ubuntu 18.04) using rudder-agent 6.0.6, it seems to be no problem using rudder-agent 5.0.13.
We use an agent-check intervall of 6h.
This code is vanished in 6.0.6 (/opt/rudder/share/commands/agent-check):
"...
  1. Get the value of rudder-agent run interval from file /var/rudder/cfengine-community/inputs/run_interval
    if [ -f "${CFE_DIR}/inputs/run_interval" ]; then
    RUN_INTERVAL=`cat "${CFE_DIR}/inputs/run_interval"` # If the value is not a number, reset to 5
    if ! test "${RUN_INTERVAL}" -gt 0 2>/dev/null
    then
    RUN_INTERVAL=5
    fi
    else # File does not exists, use default value 5
    RUN_INTERVAL=5
    fi
    ..."
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 #4

Updated by François ARMAND over 4 years ago

  • Tracker changed from Question to Bug
  • Subject changed from rudder-agent check sleep to rudder-agent check sleep and process pile-up
  • Severity set to Major - prevents use of part of Rudder | no simple workaround
  • User visibility set to Operational - other Techniques | Rudder settings | Plugins
  • Priority set to 49
  • Name check set to To do
  • Fix check set to To do
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 #5

Updated by Benoît PECCATTE over 4 years ago

  • Target version set to 6.2.0~beta1
  • Priority changed from 49 to 24
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 #6

Updated by Benoît PECCATTE over 4 years ago

  • Status changed from New to In progress
  • Assignee set to Benoît PECCATTE
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 #7

Updated by Benoît PECCATTE over 4 years ago

  • Status changed from In progress to Pending technical review
  • Assignee changed from Benoît PECCATTE to Alexis Mousset
  • Pull Request set to https://github.com/Normation/rudder-techniques/pull/1615
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 #8

Updated by Benoît PECCATTE over 4 years ago

  • Status changed from Pending technical review to Pending release
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 #9

Updated by Vincent MEMBRÉ about 4 years ago

  • Target version changed from 6.2.0~beta1 to 7.0.0~beta1
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 #10

Updated by Vincent MEMBRÉ about 3 years ago

  • Status changed from Pending release to Released
  • Priority changed from 24 to 43

This bug has been fixed in Rudder 7.0.0~beta1 which was released today.

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